National security adviser Mike Waltz and his deputy, Alex Wong, will be leaving their posts in the Trump White House, according to multiple sources familiar with their departure. They are expected to leave Thursday, sources say. The White House did not immediately respond to a request for comment. Journalist Mark Halperin first reported the departures. In March, Waltz came under scrutiny after he put together a Signal chat and mistakenly included The Atlantic's Jeffrey Goldberg, disclosing discussions with top national security officials about plans for a military strike on Houthi targets in Yemen. Goldberg published his account, and he initially...